assurance：保证，担保，确信，把握，信心

词根词缀：as-来,临近 + -sur-确信 + -ance

• convenient
• convent
• convention
• conventional
• converge
• conversant
• conversation
• converse
• conversion
• convert
• convertible
• convex
• convey
• conveyance
• convict
• conviction
• convince
• convivial
• convocation
• convoke
• convoluted
• convolve
• convolvulus
• convoy
• convulse